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四、天生平梨天生平梨,又名屹塔梨。产于河南孟滓地区,为一古老品种。一九六九年引入我省。 1.农业生物学特性树性:生长势强,开张生长,六年生幼树枝展1.44×1.69米,高2.5米,主干粗17厘米,枝条稀疏,开张生长,树冠呈长园形,在民和芽萌发力强,发枝力中等。嫁接后四年开始结果,以短果枝与腋花芽为主,花序成果数3～4个,甚丰产。物候期:在民和芽萌发期为四月十五日,终止期为四月廿三日,开花始期为四月廿
Four, born Ping Pear born Ping pear, also known as tower pear. Produced in Henan Mengse area, as an ancient breed. Introduced to our province in 1969. 1. Agricultural biological characteristics Tree: strong growth, opening growth, six-year-old young branch show 1.44 × 1.69 meters, 2.5 meters high, rough 17 cm trunk, sparse branches, opening growth, the crown was long park-shaped, Bud strong germination, middle branch strength. Four years after grafting, the results are mainly fruiting branches and axillary buds. The number of inflorescences is 3 to 4 and the yield is very high. The phenophase: in the bud and germination of people and April 15, the termination period is April 23, the flowering of April 20